第一单元

Unit one

  Camping野营

Division with remainder有余数的除法

Lesson one

1.10 cookies, 3 cookies per person, how many people can you share?

10片饼干，每人分3片，可以分给几人？

2．10 cookies, 3 cookies per person, so I can divide them among 3 people, so I have 1 cookie left.

10片饼干，每人分3片，可以分给3人，还剩1片。

3. I can write it as a division.

  写成除法算式是

4. Ten divided by three equals three remaining one.

10÷3=3……1 读作：10除以3等于3余1。

5. What other questions can you ask?

你还能提出什么问题？

6. I have 12 strawberries and I have 4 strawberries for each person. How many people can I share them with?

有12个草莓，每人分4个，可以分给几人？

7. What if there were 13, 14, 15 or 16?

如果有13个、14个、15个或16个呢？

8. Let's practice together！

我们一起来练习一下吧！

9.I see that the remainder is always smaller than the divisor, why is the remainder always smaller than the divisor?

我发现余数都比除数小，为什么余数都比除数小呢？

Lesson two

1.11 wild fruits divided equally among 3 people, how many are each divided, how many are left?

11个野果平均分给3人，每人分几个，还剩几个？

2. How can we compute it in vertical form?

用竖式可以怎样计算？

3. Think: how many 3's are there in 11 at most?

想：11里面最多有几个3？

4. What other questions can you ask?

你还能提出什么问题？

5. The 23 mushrooms are divided equally among 4 people. How many mushrooms are left?

23个蘑菇平均分给4人，每人分几个，还剩几个？

6. 3 people per tent, 17 people need to put up how many tents?

每顶帐篷住3人，住17人需要搭多少顶帐篷？

7. There are 13 corn, 4 corn per person, how many corn per person, how many are left?

有13个玉米，每人分4个，每人分几个，还剩几个？

Lesson three

1. Look at the picture, what do you find?

观图，你有什么发现？

2. Count and go around.

数一数 、圈一圈。

3. The arrangement of small flags is repeated in groups of 3 sides.

小旗的排列规律是每3面一组重复出现。

4. What colour is the seventeenth flag?

算一算，第十七面小旗是什么颜色的？

5. Use your hands, use your head, have a try.

动动手，动动脑，试一试。

6. What's number 24 if we go like this?

照这样摆下去，第24个是什么？

7. It is convenient to solve the problem according to the rule of arrangement.

根据排列规律列算式解决问题真方便！

8. Let's practice together!